To address a teapot causing fire color changes, first inspect the water quality. Hard water with high mineral content can alter combustion efficiency, leading to unusual flame hues. Second, clean the teapot thoroughly to remove residue that may interfere with heat distribution. Third, check the stove’s gas line or electrical components for blockages or malfunctions. If using natural gas, ensure the pilot light is properly lit and the gas valve is fully open. For electric stoves, verify the heating element is not damaged. Finally, adjust the flame settings to maintain a steady blue flame, as yellow or orange flames indicate incomplete combustion.

The primary cause of flame color changes is impurities in the water or combustion inefficiency. Hard water containing calcium or magnesium ions reduces boiler efficiency, forcing the appliance to compensate by producing a larger, less efficient flame, often appearing yellow or orange. A 2021 study by the American Chemical Society found that water with a TDS (Total Dissolved Solids) level above 300 ppm significantly alters combustion patterns, correlating with 15–20% increased energy consumption and abnormal flame colors. Additionally, a 2019 report by the U.S. Department of Energy highlighted that 40% of residential gas stoves experience flame color variations due to unventilated spaces or faulty venturi tubes, which disrupt fuel-air mixing. Cleaning the teapot every 3–6 months removes mineral deposits that accumulate on heating surfaces, improving heat transfer and flame stability. For electric stoves, replacing worn heating elements can resolve 70% of cases where discolored flames originate from internal component failures. Combining these steps ensures optimal combustion, reducing energy waste and maintaining safety.